[R] subsetting a data.frame to the 'unique' of a column

[Peter Dalgaard]

Rudi Alberts <r.alberts at rug.nl> writes:


> something like this, however, this gives me the complete df.
> 
> df[df$colname %in% unique(df$colname),]
> 
> or this, which doesnt work
> 
> df[df$colname == unique(df$colname),]


 df[!duplicated(df$colname),]


-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
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